Airworthiness Directive · Amendment 39-14948 · Columbia Aircraft Manufacturing Models LC41-550FG and LC42-550FG Airplanes
Columbia Aircraft Manufacturing Models LC41-550FG and LC42-550FG Airplanes
This AD applies to Models LC41-550FG and LC42-550FG airplanes, all serial numbers equipped with Kelly Aerospace Thermal Systems Supplemental Type Certificate (STC) SA02260CH, that are certificated in any category.
The FAA is adopting a new Airworthiness Directive (AD) for all Columbia Aircraft Manufacturing (previously The Lancair Company) Models LC41-550FG and LC42-550FG airplanes equipped with Kelly Aerospace Thermal Systems Supplemental Type Certificate (STC) SA02260CH, Thermawing Deice System (also known as E-Vade). This AD requires you to deactivate the deice system and install a placard in clear view of the pilot. This AD results from problems with the installation of the Kelly Aerospace Thermal Systems Thermawing Deice System following STC SA02260CH. We are issuing this AD to prevent a short circuit condition at the deice heater connector, which could result in damage to the wings and horizontal stabilizer. This damage could lead to reduced structural integrity of the airplane.
To address this problem, you must do the following, unless already done:
| Actions | Compliance | Procedures |
|---|---|---|
| (1) Deactivate the Kelly Aerospace Thermal Systems Thermawing Deice System installed following STC SA02260CH | Before further flight after December 21, 2006 (the effective date of this AD) | Follow Kelly Aerospace Thermal Systems Service Letter Bulletin No. SL-06-001, Issue Date: November 15, 2006. |
| (2) Fabricate a placard that incorporates the following words (using at least 1/4 -inch black letter on a white background) and install this placard in clear view of the pilot.“DEICE SYSTEM INOPERABLE” | Before further flight after December 21, 2006 (the effective date of this AD) | The owner/operator holding at least a private pilot certificate as authorized by section 43.7 of the Federal Aviation Regulations (14 CFR 43.7) may fabricate and install the placard. Make an entry into the aircraft records showing compliance with these portions of the AD in accordance with section 43.9 of the Federal Aviation Regulations (14 CFR 43.9). |
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
